▎ 摘　　要

NOVELTY - Preparation of nano-graphene paper involves diluting graphite oxide powder with deionized water, adding dispersant, ultrasonically dispersing, adding reducing agent, performing reduction reaction, filtering, drying, diluting with ethanol or acetone, ultrasonically dispersing, uniformly coating obtained colloidal graphene on a metal foil, forming multilayer of nano-graphene paper, etching metal foil using hydrochloric acid or sulfuric acid, and separating nano-graphene paper. USE - Preparation of nano-graphene paper (claimed).